85311299 has 2 divisors, whose sum is σ = 85311300. Its totient is φ = 85311298.

The previous prime is 85311263. The next prime is 85311329. The reversal of 85311299 is 99211358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85311299 - 2⁸ = 85311043 is a prime.

It is not a weakly prime, because it can be changed into another prime (85311229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42655649 + 42655650.

It is an arithmetic number, because the mean of its divisors is an integer number (42655650).

Almost surely, 2^85311299 is an apocalyptic number.

85311299 is a deficient number, since it is larger than the sum of its proper divisors (1).

85311299 is an equidigital number, since it uses as much as digits as its factorization.

85311299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 85311299 is about 9236.4115867581. The cubic root of 85311299 is about 440.2190696293.

The spelling of 85311299 in words is "eighty-five million, three hundred eleven thousand, two hundred ninety-nine".